Control device



0; EDELMANN CONTROL DEVIIGE May 20, 1930.

- F'iled March 28; 192 8 M w/m a m/u Patented May 20, 1930 v 1 UNITED STATES PATENT? OFFICE orro EDELMANN, or: OAK PARK, rnrmors, Assrou'oe TO WESTERN ELECTRIC com- :eau'r, mcouronnrnp, or-ivuw roux,

N. Y., A CORPORATION OF NEW YORK CONTROL DEVICE Application filed March 28, 1928. Serial No. 265,264.

' merits arranged to be moved with respect to one another to allow very line or critical adiustment.

t ll

1 securing the condenser housing In order to attain this object a plurality of elements such as for example the plates of a variable electrostatic condenser, are capable of being moved together or separately as deterinined by the fineness of the adjustment desired. Specifically, all ofthe elements are arranged to be moved simultaneously due to the movement of a menl berin one direction certain of the elements may be moved in dividually due to its movement in a diilerent direction;

A clear understanding of the invention may be had by reference to the-following description of one embodiment of the invention taken in coniunction with the accompanying drawlug, in which 1 is a fragmentary elevational. View of a panel upon which is mounted a dual con trol diai;

2 is a sectional view thereof taken on the line 2% of Fig. 1 looking in the direction indicated by the arrows, and

3 is a fragmentary sectional view thereof taken on the line of Fig. 2 lookin the direction of the arrows Referring to the drzuwing in "which the same reference characters designate like parts throughout the several views a stugportiug 13"Gl designated by thenunieral ill has en U thereou a suitable dial and a condenser housing designated generall by numeral 12' mounted} on the re 2? of the eonel concentrically with the dial projecting through the panel and a nut o is threadec thereon tor the p'rpose of 12 to the panel 19,

Mounted. Within the condenser housing 12 which a leverS i is rigidly attached by dial 11 r lhe condenser housing 12 comprises a cylindrical l M, and portion 15 and an end per-- r .0 l

and attached to the side Wall thereof by slotted members and 22 are a plurality of series of plates 23-23 and 241-24. A shaft 25 is rotatably mounted in the condenser housing 12 and is positionedtherein by a head 26 formed thereon and a nut 29 threaded upon the end thereof opposite the head 26. The shaft 25 has secured thereto a slotted member 27 having a series of slates 28 attached thereto which upon rotation of the shaft 25 cooperate with plat-es 23-23 to form a Variable condenser Encircling the shaft 25 is a sleeve 30 having attached thereto a slotted member 31 to which are attached a series of plates which may cooperate With the plates E i- 24 to form another va riable condenser The sleeve 30 passes through the tubular io'orti'on 17 oi. the front end has a threadedportion on the outer end thereoi to cans of a nut The lever 34 has pivoted its other end a link 36 which is connected to a bolt 88 by means of which a handle 39 at tached to slidable arm is, The arm 40 is sliclably mounted in a slot 42 (I 3} formed in the head 26 ofthe shaft 25 and has a pin v 44 mounted in the end thereof opposite the handle 39 to keep the arm is from being moved out to a point where the pivoted link and lever members 34 and f'lfivrould form a straight line' An indicator 4611s mounted on the end of the arm 40 to cooperate with the A disk &8 is secured to the head. 26 by means of screws and is provided "with cutout portion and adepending flange 51 having a-portiou thereof cut away indicated at 52, l,

The condensers described hereinhefore have the'usi l electrical connections but since these connections are welllrnowu to'those killed in the and-do not form. a part of in iron; the

vention, they have been omitted drawing for the sakeof simplicity;

It is believedthatthe operation'ofiflie' dual control" device will be readily understood from the io'regoing detailed description and e follovzing description of its operavi/ hen it 1 uired to move both of movable plates enmitaneously the handle 39 in as arcuats m 511g 1 slates "to my are 111017 on ihe shaft 25 ch has positionec inb i e lead 26 "thereof me slidable z'ich'b'he handle 39 is 'mounsed anc i also i: the plates 82*3'2 mmsm since they cted to the handle 39703 means of *8; link 511's 7. 3021 which 4' A G he? required b0 move the plates 3232 inspsndenfly' 0f. the plates 28-28 the ham-- 6.1938 mews in a 3216.151 direction causing 1* U6 tc'force the 34 to move in ash and since the arm 3% is fixer to; I 7 3G imam which the -slot c1 member 31 supporting L ounueii. 1

he plates 1s ounc'sd} the sleeve 80 and 311s supported threby will be saused to yo'at'e are the shaft 25.

ough the dual confirm L ;-J on 12; ne'sem lHUSiIS-jtSCi and. mscrlbed ihgnovel features 0f the mvenmon may appiled .20 vanous other van sis units such as lnductances, rteslstmaces combi L s6. is vaziable condensers, should Lion; of eiectrical testing apparatus,

1110f saizionary members and. duzJ.

Central device comprismg' a rofiatable shaft memo m Q hei'eon,membemmsunted 2 3. plvossd members ln'erconnec'nng the slldable mm thesis wa we shdabie arm. being" ovable members depancien varia lambs; s

1 U. members, and'mems movabiei-fi ,i .ciiref'lon to. Mme the is 500115 the sha;

- nabis eiec bu evice Cam membsrs'fixecfi xmmn'bed on a; si ve, rot fsiifiabiy'mmzg 0p asleve rotatzib'ie thereabout, an arm s1idmounted 11:1 theheacl oi the shaft, and

oie to simultanesusiy *a'ts 

